Water Spiders (large black) under docks

[Top-Water]

Originally Posted by spauldeen

Are they a danger?

Yes, they can grow to enormous size. They are the unintended consequences of "Science Gone Wrong" at the underwater testing laboratory near Diamond Island performed by the US Navy after world war II. (See Image) First spotted around the lake in 1955

Originally Posted by spauldeen

Any advice on responsible way to deter them appreciated.

Yes Clint Eastwood,


May not be considered a responsible way to deter them by some folks but seems to be effective. Very common in the desert southwest along with the "50 Foot Woman", and the "Colossal Man"

@Merrymeeting thanks for the informative link.